import type { DependencyArrowObstacle, DependencyArrowPoint } from "./dependencyAnchorResolver.mjs";
/**
 * How much the click hit-area is trimmed at the arrow's source end, so the pointer
 * near the anchor reaches the dependency terminal (the drag handle) instead of
 * selecting the arrow. A best-effort budget, not a guarantee: trims cap at half of
 * their segment, so short first segments (the 8px stubs) keep less clearance, and on
 * a single-segment route both trims scale down together.
 */
export declare const DEPENDENCY_ARROW_HIT_TRIM_START = 12;
/**
 * Trim at the target end, freeing the resize handle under the arrowhead.
 */
export declare const DEPENDENCY_ARROW_HIT_TRIM_END = 8;
/**
 * Stroke width of the invisible path capturing the pointer around each arrow, defined
 * here because the geometry derives the obstacle clearance from it.
 */
export declare const DEPENDENCY_ARROW_HIT_STROKE_WIDTH = 10;
/**
 * Splits an orthogonal route into the stretches that do not ride over an event box,
 * so the events a route crosses keep their clicks and drags (the hit band would
 * otherwise capture the pointerdown and the event's draggable could never start).
 * Boxes are expanded by half the hit stroke, stopping the band right before it would
 * visually reach an event. When the boxes cover the whole route, the uncut route is
 * returned instead: an overlapped band beats an unselectable arrow.
 */
export declare function clipRouteAroundObstacles(points: readonly DependencyArrowPoint[], obstacles: readonly DependencyArrowObstacle[]): DependencyArrowPoint[][];
/**
 * Shortens a route at both ends (first and last segment only).
 */
export declare function trimRouteEnds(points: readonly DependencyArrowPoint[], trimStart: number, trimEnd: number): DependencyArrowPoint[];